You may have this problem but have no idea what secure or non secure websites even means. Sites are flagged as non secure in web browsers because they don't have a secure certificate for the domain name.
Here's what Google says about what users see when visiting secure and not secure websites:
This added notification to users of whether or not a website is secure is an attempt by Google to create a more secure internet user experience. Lear more here.
We can help you get the certificate you need to secure your website. It involves access to your domain name registrar and your hosting DNS records. If you don't know what either of those are, don't worry, we can help you with that too.
Many people have already secured their websites. However, sometimes after a site is secured Chrome still shows an information icon that says a site has mixed content on it that is not secure. We've dealt with that often too and you can learn more about it in our Tips and Tricks forum or search our FAQs.